paper

Ferrofluidity in a two-component dipolar Bose-Einstein Condensate

arXiv:0812.0278 · doi:10.1103/PhysRevLett.102.230403

Abstract

It is shown that the interface in a two-component Bose-Einstein condensate (BEC) in which one component exhibits a dipole-dipole interaction spontaneously forms patterns similar to those formed in a magnetic liquid subject to a magnetic field. A hexagonal pattern, hysteretic behavior, and soliton-like structure are numerically demonstrated. A phenomenon similar to the labyrinthine instability is also found. These phenomena may be realized using a 52Cr BEC. The periodic density modulation in the superfluid ground state offers evidence of supersolidity.

4 pages, 6 figures

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